US 12,454,967 B2
Multi-stage, telescoping hydraulic cylinder, cylinder bearing protection system, and scraper for cylinder rod
Darin M. Rosenboom, Sheldon, IA (US); and Ryan L. Bolkema, Sheldon, IA (US)
Assigned to Rosenboom Machine & Tool, Inc., Sheldon, IA (US)
Filed by Rosenboom Machine & Tool, Inc., Sheldon, IA (US)
Filed on May 15, 2023, as Appl. No. 18/317,405.
Claims priority of provisional application 63/364,694, filed on May 13, 2022.
Prior Publication US 2023/0366414 A1, Nov. 16, 2023
Int. Cl. F15B 15/14 (2006.01); F15B 15/16 (2006.01); F16C 35/02 (2006.01)
CPC F15B 15/1438 (2013.01) [F15B 15/1433 (2013.01); F15B 15/1457 (2013.01); F15B 15/16 (2013.01); F16C 35/02 (2013.01); F16C 2361/00 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An end mount for use with a hydraulic cylinder, comprising:
an end mount housing comprising a plurality of scallops cut into the housing;
a bearing member positioned in the housing and connected to the cylinder to allow movement thereof, wherein the bearing member comprises a spherical bearing and an outer race surrounding the spherical bearing; and
at least one metallic scraper positioned between the bearing member and the housing to mitigate material from building up on the bearing member and to protect seals adjacent the at least one metallic scraper,
wherein the at least one metallic scraper comprises a circular shaped member that is positioned fully externally and surrounding the outer race of the bearing member; and
wherein the plurality of scallops allow debris to evacuate away from the scrapers.